You take the derivative of the position equation s(t) = -3 + 4

and you get v(t) = 8t
now plug in 5
v(5) = 40
40 m/s
is your answer
Answer:
10 potatoes.
Step-by-step explanation:
Let x be the number of potatoes.
Then by proportion:
30/12 = x/4
12x = 4*30 = 120
x = 10.
I believe there is a picture of the situation missing, but we still have all the info necessary to solve.
We take the height, 5, and divide by the slope, 1/12, getting 60. This is the length of the ramp.
60 feet<span />
<span>For this case we have the following function:
</span>

<span> To find the axis of symmetry, the first thing to do is to derive the function.
We have then:
</span>

<span> Equaling zero we have:
</span>

<span> We clear the value of x.
We have then:
</span>

<span>
Answer:
The axis of symmetry is given by:
x = -2</span>